Toyota Van Dome Light Bulb Size

The Toyota Van dome light requires a unique DE3175 bulb size for the interior lighting system. Data for the specific bulb requirements covers the range from 1988 to 1989.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Type	Shop
1988-1989	DE3175	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3175	Check Price

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Additional Notes

The DE3175 is the sole bulb type specified for the Toyota Van's dome light across the 1988-1989 model years, indicating a consistent fitment across both years of the listed range.
The DE3175 is a festoon-style bulb, meaning it is cylindrical in shape with metal end-cap contacts on each end rather than a base pin or wedge configuration. This contact style requires a holder designed specifically for festoon fitment.
The DE3175 has a 31mm length, which is the critical physical specification for fitment. A festoon bulb of a different length will not seat correctly in the Toyota Van's dome light socket.
The bulb operates at 12 volts, consistent with standard automotive electrical systems. Substituting a bulb with a different voltage rating would affect both output and service life.
The DE3175 designation follows the ANSI standard used in the United States and Canada, meaning the specification applies to North American market vehicles.